Cleaner for sieves.



PATE'NTED -MAY 19, 1908.

E; KNIPS. CLEANER FOE SIEVE S.

APPLIOATION FILED APR. 30. 1906.

or cleaner the frame of a'bolting machine.

"entrain srafrnsratrnnr OFFICE.

nun. more, or MINNEAPOLIS, MINNESOTA, ASSIGNOR or ONE-HALF TO JAMES Pro, or

MINNEAPOLIS, umnsso'm.

canan'sn son smvlus.

No. seen-a5.

Specification of Letters Patent.

'Patented May 19, 1908.

Application filed April so, 1906. Serial No. 314,518.

the bolting clo imparted th gyratcry Inc The object of th brush or c brush 0.1. mg the e .cien the brush 1:; or

The mven tion or or cleaner form :ction of tor-"red edge urface.

b ure 1 is a pen a bolting frame "if; showing my i111 r position for o eraurn s rface of the looting a sec ion through tl. brush rowing also the boltingcloth and the brush. supporting noeterial. Fig. 3 is 8. pers )ective view of one of my improved brus es or cieancrs. Fig; 4V is perspective view of one of my improved brushes or cleaners, the same being shown upside down.

In the drawings, 2 represents a ortion of his frame is preferably divided into sections by the bars 3. p

My improved brush'consists of a small section of flexible material, preferably formed of woven fabric or webbing of suitable thickness. I prefer to use for this urpose thick cotton webbing such as is em ,oyed forabelting for driving machinery. Each brush or cleaner consists of asmall section of this material havingraw edges. In practice I generally square.

employ for each brush a piece of the fabric about two inches or two and one-half inches To the under side of each brush I also prefer to secure a small base plate 5, formed of leather and secured to the cleaner; by suitable tacks or rivets 6. Each sieve frame is provided with the bolting cloth 7 6'0 and with a supporting fabric 8 arranged at a" short distance below said bolting cloth and the brushes or cleaners are arranged between; the bolting cloth and the supporting fabric.

This supporting fabric is preferably formed of wire cloth having a coarse mesh so that the, material pan ng through the bolting cloth also readily throu h this supportin fabric. The brushes or cdeaners are place upon tbesuppcrting fabric, 8' and as the bolt- -7'0 frame is agitated or given a gyratory motion the cleaners are thrown against the edges of the side rails and bars and thereby the edges of the fabric are turned upward so as to form a brush or cleaningedge or surface 9 that sweeps across'the under surface of the bolting cloth and keeps the meshes-Of said cloth clear.

While the. brushes or cleaners are usuallycf rectangular form when put into the. ma 8'0 chine the corners soon become, worn offand I the brushes the-n assume the clrcular or oval form shown in Figs. 1 and 3 of the drawings.

As the use of the brushes or ,cleanerscontinues the brushing surface is continuously- 85.

or brushes are reduced to a very small ffaction of their original size, when they may be removed. and others substituted therefor.

Nhile I have shown and -described the cleaner as resting upon the supporting fabric preferably formed ofwire cloth, it will be understood that this supporting fabric may be olnitted'if preferred and the brush may besupported directl upon a solid deck or upon any other suitabl e support bywhich it will be held in proper under side of the olting cloth.

I do'nct limit myself to any particular size of brush or cleaner or to any particular material therefor, it being necessary only that a,

section of suitable sheet fabric or material be i OSltIOIl to operate on the material capable of being turned upward by I impact against the bars or rails of the sieve frame.

I claim as my invention:

1. The herein described cleaner for shaking or gyratory sieves consisting of a section of sheet material having free edges adapted to be upturned above the face of the material in the operation of the cleaner to constitute a cleaning or brushing surface, substantially as described.

2. The herein described cleaner for shaking or gyratory sieves consisting of a section of Woven fabric havin free edges adapted to be upturned above t e face of the fabric inthe operation of the cleaner to constitute 'a brushing surface, substantially as described.

3. The combination, with a sieve frame provided With a sieve surface and a brush sup orting surface arranged below said sieve sur ace, of a cleaner supported upon said supporting surface and consisting ofa section of sheet material having free edges adapted 'to be upturned above the face of the material by impact with the bars or rails of the sieve frame.

4. The combination, With a sieve frame provided With a sieve surface and a brush supporting surface arranged below said sieve surface, of a brush or cleaner supported upon said supporting surface and consisting of a section of Woven fabric having raw or free edges adapted to be upturned above the face of the fabric by impact with the bars or rails of the sieve frame, substantially as described.

In witness whereof, I have hereunto set my handthis 26th day of April 1906.

EMIL KNIPS.

Witnesses:

A; C. PAUL, J. H. BALDWIN. 

